InChI=1/C18H17N5O/c1-13-8-10-16(11-9-13)19-18(24)17(23-14(2)20-21-22-23)12-15-6-4-3-5-7-15/h3-12H,1-2H3,(H,19,24)/b17-12-/f/h19H ACFB4FA4FE08A272